This patch is required for checkpoint/restore in userspace.
c/r requires some way to get all pending IPC messages without deleting
them from the queue (checkpoint can fail and in this case tasks will be
resumed, so queue have to be valid).
To achive this, new operation flag MSG_COPY for sys_msgrcv() system call
was introduced. If this flag was specified, then mtype is interpreted as
number of the message to copy.
If MSG_COPY is set, then kernel will allocate dummy message with passed
size, and then use new copy_msg() helper function to copy desired message
(instead of unlinking it from the queue).
Notes:
1) Return -ENOSYS if MSG_COPY is specified, but
CONFIG_CHECKPOINT_RESTORE is not set.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Cc: Serge Hallyn <serge.hallyn@canonical.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add 3 new variables and sysctls to tune them (by one "next_id" variable
for messages, semaphores and shared memory respectively). This variable
can be used to set desired id for next allocated IPC object. By default
it's equal to -1 and old behaviour is preserved. If this variable is
non-negative, then desired idr will be extracted from it and used as a
start value to search for free IDR slot.
Notes:
1) this patch doesn't guarantee that the new object will have desired
id. So it's up to user space how to handle new object with wrong id.
2) After a sucessful id allocation attempt, "next_id" will be set back
to -1 (if it was non-negative).
[akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Cc: Serge Hallyn <serge.hallyn@canonical.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Lo [Fri, 4 Jan 2013 23:34:45 +0000 (15:34 -0800)]
drivers/rtc/rtc-tegra.c: convert to DT driver
After Kernel 3.7, the Tegra device will only support booting with DT.
The legacy Tegra RTC platform driver will not work anymore. This patch
converts the driver to support DT.
Signed-off-by: Joseph Lo <josephl@nvidia.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Joseph Lo <josephl@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 Jan 2013 18:41:54 +0000 (10:41 -0800)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull ARM64 fixes from Catalin Marinas:
- Missing include in asm/compat.h.
- Kconfig updates.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: Always select ARM_AMBA and GENERIC_GPIO
arm64: Keep the ARM64 Kconfig selects sorted
arm64: Include linux/ptrace.h in asm/compat.h
Linus Torvalds [Fri, 4 Jan 2013 18:30:11 +0000 (10:30 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input update from Dmitry Torokhov:
"Updates for the input subsystem. Just a couple of driver fixes this
time."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: gpio_keys - defer probing if GPIO probing is deferred
Input: gpio_keys_polled - defer probing if GPIO probing is deferred
Input: sentelic - only report position of first finger as ST coordinates
Linus Torvalds [Fri, 4 Jan 2013 18:29:01 +0000 (10:29 -0800)]
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull radeon and minor nouveau fixes from Dave Airlie:
"Just a radeon pull from Alex, fixes a few regressions since 3.7 and
reworks some of the reset handling, and two minor nouveau fixes I
found on the list, Ben will be back next week to take care of the
couple of larger nouveau patches that I see outstanding."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau: fix init with agpgart-uninorth
drm: nouveau: Fix build warning seen if HWMON is undefined
drm/radeon: switch to a finer grained reset for SI (v2)
drm/radeon: switch to a finer grained reset for cayman/TN
drm/radeon: switch to a finer grained reset for evergreen
drm/radeon: switch to a finer grained reset for r6xx/7xx
drm/radeon: add GPU reset flags
drm/radeon: fix typo in evergreen dma fence
drm/radeon: Properly handle DDC probe for DP bridges
drm/radeon: reset dma engine on gpu reset (v2)
drm/radeon: print dma status reg on lockup (v2)
drm/radeon: improve ring debugfs printing
drm/radeon: add debugfs file for dma rings
drm/radeon/r6xx: fix DMA engine for ttm bo transfers
drm/radeon: add connector table for Mac G4 Silver
Aaro Koskinen [Mon, 31 Dec 2012 01:34:59 +0000 (03:34 +0200)]
drm/nouveau: fix init with agpgart-uninorth
Check that the AGP aperture can be mapped. This follows a similar change
done for Radeon (commit 365048ff, drm/radeon: AGP memory is only I/O if
the aperture can be mapped by the CPU.).
The patch fixes the following error seen on G5 iMac:
nouveau E[ DRM] failed to create kernel channel, -12
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58806 Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer <michel@daenzer.net> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 4 Jan 2013 02:51:51 +0000 (12:51 +1000)]
Merge branch 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next
- fix the crashes related to DMA on r6xx
- properly reset DMA on GPU reset
- fix monitor probing with some DP bridges
- misc small bug fixes
* 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: switch to a finer grained reset for SI (v2)
drm/radeon: switch to a finer grained reset for cayman/TN
drm/radeon: switch to a finer grained reset for evergreen
drm/radeon: switch to a finer grained reset for r6xx/7xx
drm/radeon: add GPU reset flags
drm/radeon: fix typo in evergreen dma fence
drm/radeon: Properly handle DDC probe for DP bridges
drm/radeon: reset dma engine on gpu reset (v2)
drm/radeon: print dma status reg on lockup (v2)
drm/radeon: improve ring debugfs printing
drm/radeon: add debugfs file for dma rings
drm/radeon/r6xx: fix DMA engine for ttm bo transfers
drm/radeon: add connector table for Mac G4 Silver
Alex Deucher [Thu, 3 Jan 2013 17:07:30 +0000 (12:07 -0500)]
drm/radeon: add GPU reset flags
The idea here is to move to a finer grained reset.
In some cases we may not need reset every block, and
in other cases we may not need to re-init the entire
asic.
Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Linus Torvalds [Fri, 4 Jan 2013 00:17:50 +0000 (16:17 -0800)]
Merge tag 'driver-core-3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core __dev* removal patches - take 3 - from Greg Kroah-Hartman:
"Here are the remaining __dev* removal patches against the 3.8-rc2
tree. All of these patches were previously sent to the subsystem
maintainers, most of them were picked up and pushed to you, but there
were a number that fell through the cracks, and new drivers were added
during the merge window, so this series cleans up the rest of the
instances of these markings.
Third time's the charm...
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up trivial conflict with the pinctrl pull in pinctrl-sirf.c.
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Mike Miller <mike.miller@hp.com> Cc: Chirag Kantharia <chirag.kantharia@hp.com> Cc: Geoff Levand <geoff@infradead.org> Cc: Jim Paris <jim@jtan.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Keith Busch <keith.busch@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: NeilBrown <neilb@suse.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Tao Guo <Tao.Guo@emc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: David Airlie <airlied@linux.ie> Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, and
__devinitconst, from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Hiroshi DOYU <hdoyu@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, and __devexit
from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Chris Ball <cjb@laptop.org> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Will Newton <will.newton@imgtec.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Thomas Abraham <thomas.abraham@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitconst,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Anton Vorontsov <cbou@mail.ru> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Jamie Lentin <jm@lentin.co.uk> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Thu, 3 Jan 2013 21:10:18 +0000 (13:10 -0800)]
Merge tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"A first round of pinctrl fixes for v3.8:
- i.MX5 register configuration
- Swap a kfree to devm_kfree() to avoid memory corruption in the at91
driver
- Add the missing device tree binding doc for the SIRF pin controller
- Enable the SIRF GPIO pull up/down configuration from the device
tree, it was previously retired from the hard-coded approach.
- NULL check for the prcm_base in the Nomadik pin controller.
- Provide the prcm_base from the device tree in the DT boot path for
the Nomadik pin controller."
* tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
ARM: ux500: add pinctrl address resources
pinctrl: nomadik: return if prcm_base is NULL
pinctrl: sirf: enable GPIO pullup/down configuration from dts
pinctrl: sirf: add missing DT-binding document
pinctrl: fix comment mistake
drivers/pinctrl/pinctrl-at91.c: convert kfree to devm_kfree
pinctrl: imx5: fix GPIO_8 pad CAN1_RXCAN configuration
Linus Torvalds [Thu, 3 Jan 2013 19:41:43 +0000 (11:41 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs bug fixes from Jaegeuk Kim:
"This patch-set includes two major bug fixes:
- incorrect IUsed provided by *df -i*, and
- lookup failure of parent inodes in corner cases.
[Other Bug Fixes]
- Fix error handling routines
- Trigger recovery process correctly
- Resolve build failures due to missing header files
[Etc]
- Add a MAINTAINERS entry for f2fs
- Fix and clean up variables, functions, and equations
- Avoid warnings during compilation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
f2fs: unify string length declarations and usage
f2fs: clean up unused variables and return values
f2fs: clean up the start_bidx_of_node function
f2fs: remove unneeded variable from f2fs_sync_fs
f2fs: fix fsync_inode list addition logic and avoid invalid access to memory
f2fs: remove unneeded initialization of nr_dirty in dirty_seglist_info
f2fs: handle error from f2fs_iget_nowait
f2fs: fix equation of has_not_enough_free_secs()
f2fs: add MAINTAINERS entry
f2fs: return a default value for non-void function
f2fs: invalidate the node page if allocation is failed
f2fs: add missing #include <linux/prefetch.h>
f2fs: do f2fs_balance_fs in front of dir operations
f2fs: should recover orphan and fsync data
f2fs: fix handling errors got by f2fs_write_inode
f2fs: fix up f2fs_get_parent issue to retrieve correct parent inode number
f2fs: fix wrong calculation on f_files in statfs
f2fs: remove set_page_dirty for atomic f2fs_end_io_write
Pull GFS2 fixes from Steven Whitehouse:
"Here are four small bug fixes for GFS2. There is no common theme here
really, just a few items that were fixed recently.
The first fixes lock name generation when the glock number is 0. The
second fixes a race allocating reservation structures and the final
two fix a performance issue by making small changes in the allocation
code."
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Reset rd_last_alloc when it reaches the end of the rgrp
GFS2: Stop looking for free blocks at end of rgrp
GFS2: Fix race in gfs2_rs_alloc
GFS2: Initialize hex string to '0'
Linus Torvalds [Thu, 3 Jan 2013 19:37:49 +0000 (11:37 -0800)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
"Here are a couple of small powerpc fixes. They aren't new bugs (and
they are both CCed to stable) but I didn't see the point of sitting on
the fixes any longer."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Add missing NULL terminator to avoid boot panic on PPC40x
powerpc/vdso: Remove redundant locking in update_vsyscall_tz()
Shan Hai [Thu, 8 Nov 2012 15:57:49 +0000 (15:57 +0000)]
powerpc/vdso: Remove redundant locking in update_vsyscall_tz()
The locking in update_vsyscall_tz() is not only unnecessary because the vdso
code copies the data unproteced in __kernel_gettimeofday() but also
introduces a hard to reproduce race condition between update_vsyscall()
and update_vsyscall_tz(), which causes user space process to loop
forever in vdso code.
The following patch removes the locking from update_vsyscall_tz().
Locking is not only unnecessary because the vdso code copies the data
unprotected in __kernel_gettimeofday() but also erroneous because updating
the tb_update_count is not atomic and introduces a hard to reproduce race
condition between update_vsyscall() and update_vsyscall_tz(), which further
causes user space process to loop forever in vdso code.
The below scenario describes the race condition,
x==0 Boot CPU other CPU
proc_P: x==0
timer interrupt
update_vsyscall
x==1 x++;sync settimeofday
update_vsyscall_tz
x==2 x++;sync
x==3 sync;x++
sync;x++
proc_P: x==3 (loops until x becomes even)
Because the ++ operator would be implemented as three instructions and not
atomic on powerpc.
A similar change was made for x86 in commit 6c260d58634
("x86: vdso: Remove bogus locking in update_vsyscall_tz")
Signed-off-by: Shan Hai <shan.hai@windriver.com> CC: <stable@vger.kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
leds: leds-gpio: set devm_gpio_request_one() flags param correctly
commit a99d76f leds: leds-gpio: use gpio_request_one
changed the leds-gpio driver to use gpio_request_one() instead
of gpio_request() + gpio_direction_output()
Unfortunately, it also made a semantic change that breaks the
leds-gpio driver.
The gpio_request_one() flags parameter was set to:
GPIOF_DIR_OUT | (led_dat->active_low ^ state)
Since GPIOF_DIR_OUT is 0, the final flags value will just be the
XOR'ed value of led_dat->active_low and state.
This value were used to distinguish between HIGH/LOW output initial
level and call gpio_direction_output() accordingly.
With this new semantic gpio_request_one() will take the flags value
of 1 as a configuration of input direction (GPIOF_DIR_IN) and will
call gpio_direction_input() instead of gpio_direction_output().
Linus Torvalds [Thu, 3 Jan 2013 01:46:14 +0000 (17:46 -0800)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
"This fixes some small errors in the new da9055 driver, eliminates a
compiler warning and adds DT support for the twl4030_wdt driver (so
that we can have multiple watchdogs with DT on the omap platforms)."
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: twl4030_wdt: add DT support
watchdog: omap_wdt: eliminate unused variable and a compiler warning
watchdog: da9055: Don't update wdt_dev->timeout in da9055_wdt_set_timeout error path
watchdog: da9055: Fix invalid free of devm_ allocated data
Linus Torvalds [Thu, 3 Jan 2013 01:44:29 +0000 (17:44 -0800)]
Merge tag '3.8-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Some fixes for v3.8. They include a fix for the new SR-IOV sysfs
management support, an expanded quirk for Ricoh SD card readers, a
Stratus DMI quirk fix, and a PME polling fix."
* tag '3.8-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz
PCI/PM: Do not suspend port if any subordinate device needs PME polling
PCI: Add PCIe Link Capability link speed and width names
PCI: Work around Stratus ftServer broken PCIe hierarchy (fix DMI check)
PCI: Remove spurious error for sriov_numvfs store and simplify flow
David Howells [Wed, 2 Jan 2013 15:13:02 +0000 (15:13 +0000)]
UAPI: Strip _UAPI prefix on header install no matter the whitespace
Commit 56c176c9cac9 ("UAPI: strip the _UAPI prefix from header guards
during header installation") strips the _UAPI prefix from header guards,
but only if there's a single space between the cpp directive and the
label.
Make it more flexible and able to handle tabs and multiple white space
characters.
Signed-off-by: David Howells <dhowell@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 3 Jan 2013 01:33:50 +0000 (17:33 -0800)]
Merge tag 'ecryptfs-3.8-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
"Two self-explanatory fixes and a third patch which improves
performance: when overwriting a full page in the eCryptfs page cache,
skip reading in and decrypting the corresponding lower page."
* tag 'ecryptfs-3.8-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
fs/ecryptfs/crypto.c: make ecryptfs_encode_for_filename() static
eCryptfs: fix to use list_for_each_entry_safe() when delete items
eCryptfs: Avoid unnecessary disk read and data decryption during writing
Linus Torvalds [Thu, 3 Jan 2013 01:32:49 +0000 (17:32 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
"Two of Alex's patches deal with a race when reseting server
connections for open RBD images, one demotes some non-fatal BUGs to
WARNs, and my patch fixes a protocol feature bit failure path."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: fix protocol feature mismatch failure path
libceph: WARN, don't BUG on unexpected connection states
libceph: always reset osds when kicking
libceph: move linger requests sooner in kick_requests()
It's very unlikely this will happen as shared pages are not marked
pte_numa -- see the page_mapcount() check in change_pte_range() -- but
it is possible.
To address this, this patch restores sp->lock as originally implemented
by Kosaki Motohiro. In the path where get_vma_policy() is called, it
should not be calling sp_alloc() so it is not necessary to treat the PTL
specially.
Linus Torvalds [Wed, 2 Jan 2013 17:57:34 +0000 (09:57 -0800)]
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bug fixes from Ted Ts'o:
"Various bug fixes for ext4. Perhaps the most serious bug fixed is one
which could cause file system corruptions when performing file punch
operations."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid hang when mounting non-journal filesystems with orphan list
ext4: lock i_mutex when truncating orphan inodes
ext4: do not try to write superblock on ro remount w/o journal
ext4: include journal blocks in df overhead calcs
ext4: remove unaligned AIO warning printk
ext4: fix an incorrect comment about i_mutex
ext4: fix deadlock in journal_unmap_buffer()
ext4: split off ext4_journalled_invalidatepage()
jbd2: fix assertion failure in jbd2_journal_flush()
ext4: check dioread_nolock on remount
ext4: fix extent tree corruption caused by hole punch
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